evanator66
Minstrel
Labyrinth is a pretty cool piece of free software I found a few years ago, but then forgot about. It is great for worldbuilding an organization or social structure. There is a framework for addons (two made by author) that is easy to use, with quite a bit of capability. It is quite old and is not being actively developed, but I have found no bugs or glitches. Link: Labyrinth
It made making a social structure for a city much easier.
It made making a social structure for a city much easier.